Lewis Short
(adjective) : ĭn-urbānus, a, um
* Rustic, boorish, rude, unpolishcd, unmannerly (class.): habitus orationis non inurbanus,Cic. Brut. 63, 227: non essem tam inurbanus ac paene inhumanus,id. de Or. 2, 90, 365: gestus,Quint. 6, 3, 26: inurbanum lepido seponere dicto,Hor. A. P. 273.—Adv.: inurbānē, rudely, inelegantly, without wit or humor: non inurbane,Cic. N. D. 3, 19, 50; Plin. Ep. 2, 14, 5; and, inurbānĭter (late Lat.), Aug. c. Faust. Manich. 12, 1.
Charlton T. Lewis, Charles Short, A Latin Dictionary